If i put a used coin item in the marketplace, does its days keep decreasing ?
Yesterday i put in my marketplace a spartan head 21 days left, and today i logged in, and it was 21 days.
Yes, it should continue decreasing.
it probably had 21 days and 23 hours left, and you came back before a full 23 hours or w/e, thus showing 21 days still.
Oh ok, btw it did keep decreasing, so you can close this :D